激进分子 jījìnfènzǐ radical Definitions Defs Origin Strokes Stroke Words Sentences Sents 激进 激進 jījìn adjective radical radical; extreme; eager for change or progress; used to describe people or ideas that favor fundamental and revolutionary reform分子 fènzǐ noun member A person who belongs to a specific group or class, often used to describe a certain type of person or social element.